USPTO serial 71552643
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This page summarizes the public USPTO record for this serial number, including owners, goods and services, and prosecution history.
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| Class | Description | Status | First use |
|---|---|---|---|
| 103 | DIRECTIONAL DRILLING, CORE ORIENTING AND OIL WELL SURVEYS-NAMELY, OIL WELL TEMPERATURE SURVEYS, SURFACE CONTROLLED MAGNETIC WELL SURVEYS, WATER ENTRY SURVEYS, AND SURVEYS TO ASCERTAIN INCLINATION OF AND DIRECTION OF INCLINATION OF WELL BORES | EXPIRED | Jan 1, 1934 |
CopyMark links this record to cited §2(d) serials, the owner's other marks, Nice classes, similar mark names, and recently changed USPTO applications.
| Date | Code | Event | What it means |
|---|---|---|---|
| Apr 26, 1993 | EXRG | EXPIRED SEC. 9 | — |
| Jul 22, 1972 | REN1 | REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS) | — |